Fatty granules are the common name for what may be cornrows, sweat duct tumors, acne, etc. in the ears. 1. Corns: The fat granules formed by cornrows are a kind of retention cysts, which may be closely related to factors such as family genetics and ear-digging that damages the skin and mucous membranes of the ear. 2. Sweat duct tumor: it is a common benign tumor of the skin, which may be closely related to family genetics, diabetes mellitus, Down’s syndrome and other factors. 3. Acne: non-inflammatory papules are formed due to the blockage of follicular sebaceous gland ducts, which can be manifested as fat particles. Fatty particles inside the ear, go to the regular hospital in time, clear cause, standardized treatment under the guidance of the doctor, so as not to delay the condition.